main.java

public class Main {
    public static void main(String[] args) {
        Book book = new Book("title", "Vlado", 10);
        Reader reader = new Reader("Vlado1", 45, 10);

        book.displayBook();
        System.out.println("namalenata cena e : " + book.applyDiscount(50));


        System.out.println();

        reader.addBooks(5);
        reader.displayReader();
    }
}